Lenovo, the world’s top PC maker by some measures, announced a new 27-inch tablet computer to be released this summer called the “IdeaCentre Horizon Tablet PC,” or Horizon for short.

The device is effectively a massive touchscreen all-in-one desktop computer with all the regular amenities one would expect — Windows 8, a bunch of apps, and compatibility with older programs. But unlike most all-in-one computers, whose single body includes the computer parts connected to the monitor, the Horizon’s stand can be completely folded away, allowing it to lay flat on a table.

This, Lenovo says, allows groups of people to interact with it together, particularly by playing videogames.

“Touchscreens are exploding as a technology,” said Jay Parker, general manager of consumer and small business sales for the PC maker. “We really believe that this represents a new usage model.”

He said as many as 3, 4 or 5 people can gather around the device at any given time. Lenovo also created a specialized piece of software for when the device lays flat, specifically meant to act like a digital tabletop for applications.

Lenovo has paired with Electronic Arts and Ubisoft to bring some games to the tablet, such as EA’s “Monopoly” and Ubisoft’s “Draw Race 2.”

It has also created it own games, and accessories to go with them. Among them is a pair of joysticks with suction cups on the bottom. It also developed a puck striker for its app “Lenovo Air Hockey,” which can easily accommodate four players at a time. Lenovo will also offer a pair of dice to work with the product.

There are some things left to be desired about it, however. First is the price, at approximately $1,699, is higher than many other desktop PCs. Second is its battery power when disconnected from the wall: three hours.

Despite these spec setbacks, Lenovo says it is focused on two primary markets: families and schools. “The ability for a teacher to engage with multiple students with one screen is very attractive,” Mr. Parker said.

Lenovo also said it isn’t done expanding the size of its tablets. During the Consumer Electronics Show this week, the Chinese computer maker is showing off a 39-inch tablet PC as well.